Superhydrophilic and Oil-Resistant SiO2/PU Fiber Membrane for Oil-In-Water Emulsion Separation under Gravity 


Vol. 25,  No. 5, pp. 1623-1634, May  2024
10.1007/s12221-024-00526-3


PDF
  Abstract

A polyurethane membrane with interlayer channels was developed through electrospinning to separate oily sewage. To enhance its hydrophilicity, hydrophilic silica particles were grafted onto the fiber surface, creating a rough surface. This was done by treating the membrane with oxygen plasma to generate active sites, which were then coupled with 3-aminopropyltriethoxysilane, followed by adding the membrane to a hydrolytic solution of tetraethyl orthosilicate. The resultant membrane had a low water contact angle of 23.3° and excellent underwater oleophobicity, with a high-underwater oil contact angle (varied from 155.9 to 159.7°) and underwater oil sliding angle (ranged from 4.0 to 4.6°) for different types of oils. In addition, the prepared membrane had a good moisture-evaporation rate (4.2 g/h) and water-absorption capacity (273%). It is also oil-resistant and self-cleaning in water, and could efficiently separating oil-in-water emulsion under gravity, with an initial separation flux of 2864 L/m2/h. During cyclic separation of emulsion, the membrane had the oil-retention rate of more than 99.0%, and the final separation flux of the membrane was maintained at 25 L/m2/h.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

L. Gao, H. Gu, C. Wang, H. Wu, C. Ye, "Superhydrophilic and Oil-Resistant SiO2/PU Fiber Membrane for Oil-In-Water Emulsion Separation under Gravity," Fibers and Polymers, vol. 25, no. 5, pp. 1623-1634, 2024. DOI: 10.1007/s12221-024-00526-3.

[ACM Style]

Li Gao, Haihong Gu, Chunxia Wang, Huanling Wu, and Chao Ye. 2024. Superhydrophilic and Oil-Resistant SiO2/PU Fiber Membrane for Oil-In-Water Emulsion Separation under Gravity. Fibers and Polymers, 25, 5, (2024), 1623-1634. DOI: 10.1007/s12221-024-00526-3.

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)

pISSN : 1229 - 9197
eISSN : 1875 - 0052

Impact Factor(2022): 2.5